CN211230445U - Gas sampling device - Google Patents

Abstract

The utility model discloses a gas sampling device belongs to oil machinery technical field. When using the embodiment of the utility model provides a during gaseous sampling device, pour into the liquid of capacity into in the sampling bottle body, later pour into the air that has pressure into to gaseous sampling device through first through-hole. The air with pressure can apply pressure to the liquid in the sampling built-in pipe, and the applied pressure can drive the liquid outside the sampling built-in pipe to move towards the bottle mouth of the sampling bottle body. When the liquid in the sampling bottle body flows to the second through hole, the second through hole is plugged, and the first through hole is plugged. Then the second through hole is opened and connected with a deflation valve on the casing of the oil well, then the first through hole is opened, and then the deflation valve is opened. The gas in the oil well can flow to the second through hole through the deflation valve and flow into the sampling bottle body through the second through hole, so that the gas sampling device collects the gas in the oil well.

Description

Gas sampling device

technical field

The utility model relates to the technical field of petroleum machinery, in particular to a gas sampling device.

Background technique

In the process of oilfield development, the gas in the oil well needs to be sampled by the gas sampling device, so as to analyze the collected gas and determine the physical properties of the gas in the oil well.

In the related art, the gas sampling device is a glass bottle with a bottle stopper. When the gas in the oil well is collected by the gas sampling device, the stopper is removed from the mouth of the glass bottle, and the glass bottle is filled with water, and then the glass bottle is inverted in a container filled with water. Connect the gas sampling device to the vent valve on the casing in the well through latex tubing. When sampling, open the air valve to allow the gas to enter the glass bottle. Due to the pressure of the gas, the water in the glass bottle will be discharged out of the bottle. When the water in the glass bottle is discharged to a certain amount, it indicates that the collected gas has reached the required collection amount. At this point, plug the glass bottle with the cork in the water, and take the bottle upside down.

When the gas in the oil well is collected by the above-mentioned gas sampling device, an additional container for water needs to be prepared during sampling, and after the sampling is completed, the stopper is easy to fall off the glass bottle, which may cause sampling failure and affect the sampling efficiency.

Utility model content

The utility model provides a gas sampling device, which can improve the gas sampling efficiency. The technical solution is as follows:

A gas sampling device comprising a sampling bottle cap, a sampling bottle built-in tube and a sampling bottle body;

The cover body of the sampling bottle cap is provided with a first through hole and a second through hole, one end of the built-in tube of the sampling bottle is fixed at the position of the first through hole, and the first through hole is connected to the first through hole. Both through holes can be blocked;

The sampling bottle cap and the bottle mouth of the sampling bottle body can be sealedly connected, and when the sampling bottle cap is sealedly connected with the sampling bottle body, the sampling bottle built-in tube is located in the sampling bottle body, and the sampling bottle inner tube is located in the sampling bottle body. The other end of the inner tube of the sampling bottle is not in contact with the bottom of the sampling bottle body.

Optionally, the sampling bottle cap further includes an air conditioning nozzle and a gas inlet nozzle;

the air conditioning nozzle is fixed on the first surface of the cover body at the position of the first through hole;

the gas inlet nozzle is fixed on the first surface of the cover body at the position of the second through hole;

The sampling bottle built-in tube is fixed at the position of the first through hole on the second surface of the cover body.

Optionally, the gas sampling device further includes an air conditioning nozzle cap and a gas inlet nozzle cap;

the air-conditioning nozzle cap is used for sealing the air-conditioning nozzle;

The gas inlet cap is used to seal the gas inlet nozzle.

Optionally, the gas sampling device further includes a sampling bottle cover;

The sampling bottle cover is used to cover the outer wall of the bottle mouth of the sampling bottle body.

Optionally, the gas sampling device further comprises a sampling bottle cover snap ring;

The sampling bottle cover snap ring is fixed on the outer wall of the bottle mouth of the sampling bottle body, and is used for clamping the sampling bottle cover on the sampling bottle body when the sampling bottle cover is capped on the sampling bottle body. on the outer wall of the bottle mouth of the sampling bottle body.

Optionally, the gas sampling device further comprises a cap ring;

The outer diameter of the cover stop ring is larger than the outer diameter of the sampling bottle cover snap ring, and the cover stop ring is fixed between the bottom of the sampling bottle body and the sampling bottle cover snap ring, and is used when the sampling bottle cover snap ring. When the sampling bottle cover is capped on the sampling bottle body, the sampling bottle cover is clamped on the outer wall of the sampling bottle body.

Optionally, the sampling bottle body is a transparent body.

Optionally, a scale line is configured on the sampling bottle body, and the scale line is used to indicate the volume of the fluid entering the sampling bottle body.

Optionally, a frosted layer is configured on the sampling bottle cap and the inner wall of the bottle mouth of the sampling bottle body, and the sampling bottle cap and the bottle mouth of the sampling bottle body are sealedly connected through the frosted layer.

Optionally, the outer wall of the bottle mouth of the sampling bottle body and the sampling bottle cap are provided with threads, and the sampling bottle cap and the bottle mouth of the sampling bottle body are sealedly connected through the threads.

The beneficial effects of the technical solution provided by the present utility model can at least include:

When using the gas sampling device provided by the embodiment of the present invention, a sufficient amount of liquid is injected into the sampling bottle body, and it can be ensured that after the liquid is under pressure, it can flow to the sampling bottle along the direction from the bottle bottom of the sampling bottle body to the bottle mouth. After that, cover the sampling bottle cap on the bottle mouth of the sampling bottle body. At this time, the built-in tube of the sampling bottle is located in the sampling bottle body, and the other end of the built-in tube of the sampling bottle is submerged in the liquid. The air with pressure is injected into the inner tube of the sampling bottle through the first through hole. The air with pressure will exert pressure on the liquid in the built-in sampling tube. After the liquid in the built-in tube of the sampling bottle is under pressure, it will flow out of the built-in tube of the sampling bottle, and drive the liquid outside the built-in sampling tube to the bottle of the sampling bottle body. mouth movement. When the liquid in the sampling bottle flows to the second through hole, the second through hole is blocked, and the first through hole is blocked.

Then open the second through hole and connect the second through hole with the air release valve on the casing of the oil well, then open the first through hole, and then open the air release valve. The gas in the oil well can flow to the second through hole through the air release valve, and flow into the sampling bottle body through the second through hole, so that the gas sampling device collects the gas in the oil well. That is, in the sampling process, there is no need to prepare an additional container for water, and the sampling bottle cap can be sealed with the bottle mouth of the sampling bottle body, and the bottle cap is not easy to fall off the sampling bottle body, so that the collected gas is always It is in the gas sampling device, thereby improving the sampling efficiency.

Description of drawings

1 is a schematic structural diagram of a gas sampling device provided by an embodiment of the present invention;

2 is a schematic structural diagram of another gas sampling device provided by an embodiment of the present invention;

3 is a schematic structural diagram of another gas sampling device provided by an embodiment of the present invention;

4 is a schematic structural diagram of another gas sampling device provided by an embodiment of the present invention;

5 is a schematic structural diagram of another gas sampling device provided by an embodiment of the present invention;

6 is a schematic structural diagram of another gas sampling device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another gas sampling device provided by an embodiment of the present invention.

Reference number:

1: Sampling bottle cap; 2: Sampling bottle built-in tube; 3: Sampling bottle body; 4: Sampling bottle cover; 5: Sampling bottle cover snap ring; ; 13: Air regulating nozzle cap; 14: Gas entering the nozzle cap.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present utility model more clear, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a gas sampling device provided by an embodiment of the present invention. As shown in FIG. 1 , the gas sampling device includes a sampling bottle cap 1 , a sampling bottle built-in tube 2 and a sampling bottle body 3 ;

The cover body of the sampling bottle cap 1 is provided with a first through hole and a second through hole, one end of the built-in tube 2 of the sampling bottle is fixed at the position of the first through hole, and both the first through hole and the second through hole can be blocked ;

The sampling bottle cap 1 and the bottle mouth of the sampling bottle body 3 can be sealedly connected. When the sampling bottle cap 1 is sealedly connected with the sampling bottle body 3, the sampling bottle built-in tube 2 is located in the sampling bottle body 3, and the other side of the sampling bottle built-in tube 2 is located in the sampling bottle body 3. One end is not in contact with the bottom of the sampling bottle body 3 .

When using the gas sampling device provided by the embodiment of the present invention, a sufficient amount of liquid is injected into the sampling bottle body, and it can be ensured that after the liquid is under pressure, it can flow to the sampling bottle along the direction from the bottle bottom of the sampling bottle body to the bottle mouth. After that, cover the sampling bottle cap on the bottle mouth of the sampling bottle body. At this time, the built-in tube of the sampling bottle is located in the sampling bottle body, and the other end of the built-in tube of the sampling bottle is submerged in the liquid. The air with pressure is injected into the inner tube of the sampling bottle through the first through hole. The air with pressure will exert pressure on the liquid in the built-in sampling tube. After the liquid in the built-in tube of the sampling bottle is under pressure, it will flow out of the built-in tube of the sampling bottle, and drive the liquid outside the built-in sampling tube to the bottle of the sampling bottle body. mouth movement. When the liquid in the sampling bottle flows to the second through hole, the second through hole is blocked, and the first through hole is blocked.

Then open the second through hole and connect the second through hole with the air release valve on the casing of the oil well, then open the first through hole, and then open the air release valve. The gas in the oil well can flow to the second through hole through the air release valve, and flow into the sampling bottle body through the second through hole, so that the gas sampling device collects the gas in the oil well. That is, in the sampling process, there is no need to prepare an additional container for water, and the sampling bottle cap can be sealed with the bottle mouth of the sampling bottle body, and the bottle cap is not easy to fall off the sampling bottle body, so that the collected gas is always It is in the gas sampling device, thereby improving the sampling efficiency.

It should be noted that one end of the sampling bottle built-in tube 2 is fixed at the position of the first through hole, so that one end of the sampling bottle built-in tube 2 and the sampling bottle cap 1 can be sealedly connected. When air is injected into the sampling bottle body 3 through the first through hole, the air can only flow along the sampling bottle built-in tube 2 , and will not flow from the fixed position between the sampling bottle built-in tube 2 and the sampling bottle cap 1 .

In addition, when using the gas sampling device provided by the embodiment of the present invention, air is injected into the sampling bottle body 3 through the first through hole, and gas from the oil well is injected into the sampling bottle body 3 through the second through hole. In order to facilitate the injection of air into the sampling bottle body 3 and the injection of gas from the oil well into the sampling bottle body 3 , in some embodiments, as shown in FIG. 2 , the sampling bottle cap 1 may further include an air conditioning nozzle 11 and a gas Enter mouth 12. The air conditioning nozzle 11 is fixed at the position of the first through hole on the first surface of the cover body, and the gas inlet nozzle 12 is fixed at the position of the second through hole on the first surface of the cover body of the sampling bottle cap 1 . A sampling bottle built-in tube 2 is fixed at the position of the first through hole on the second surface of the cover body.

When the sampling bottle cap 1 includes the air conditioning nozzle 11 and the gas inlet mouth 12, when air is injected into the sampling bottle body 3 through the first through hole, the air conditioning nozzle 11 can be connected to the air-injecting micro air compressor, It is convenient for the micro air compressor to inject air into the sampling bottle body 3 . When injecting the gas from the oil well into the sampling bottle body 3 through the second through hole, the gas inlet nozzle 12 can be connected to the air release valve on the casing of the oil well, so that the gas in the oil well can be injected into the sampling bottle body 3 easily. .

It should be noted that the air conditioning nozzle 11 and the gas inlet nozzle 12 can be integrated with the cover body of the sampling bottle cap 1, that is, when the sampling bottle cap 1 is processed, the air conditioning nozzle 11, the gas inlet nozzle 12 and the The cover body of the sampling bottle cap 1 is processed into an integrated structure, so that the air conditioning nozzle 11 and the gas inlet nozzle 12 are respectively fixed at the first through hole and the second through hole. Of course, the air conditioning nozzle 11 and the gas inlet nozzle 12 can also be separated from the cover body of the sampling bottle cap 1, that is, the air conditioning nozzle 11, the gas inlet mouth 12 and the cover body of the sampling bottle cap 1 are different parts , and then fix the air conditioning nozzle 11 and the gas inlet nozzle 12 at the first through hole and the second through hole, respectively.

In addition, in the process of using the gas sampling device provided by the embodiment of the present invention, the air conditioning nozzle 11 and the gas inlet nozzle 12 need to be blocked. In order to facilitate the blocking of the air conditioning nozzle 11 and the gas inlet nozzle 12, in some embodiments As shown in FIG. 3 , the gas sampling device may further include an air conditioning nozzle cap 13 and a gas inlet nozzle cap 14 . The air-conditioning nozzle cap 13 is used to seal the air-conditioning nozzle, and the gas inlet nozzle cap 14 is used to seal the gas inlet nozzle.

When the gas sampling device includes the air conditioning nozzle cap 13 and the gas inlet nozzle cap 14, after the air is injected into the sampling bottle body 3 by the micro air compressor, when the liquid in the sampling bottle body 3 reaches the second through hole, The gas inlet nozzle cap 14 may be directly placed over the gas inlet nozzle 12 to seal the gas inlet nozzle 12 . Afterwards, the air-conditioning nozzle cap 13 can be directly covered on the air-conditioning nozzle 11 to seal the air-conditioning nozzle 11 .

In addition, when the gas sampling device provided by the embodiments of the present invention is not used, in order to prevent the sampling bottle cap 1 from being damaged, or the gas inlet nozzle 12 and the air conditioning nozzle 11 from being damaged, in some embodiments, as shown in FIG. 4 , the gas sampling device may also include a sampling bottle cover 4 . The sampling bottle cover 4 is used to cover the outer wall of the bottle mouth of the sampling bottle body 3 .

When the gas sampling device includes the sampling bottle cover 4, when the gas sampling device is not used, the sampling bottle cover 4 can be covered on the outer wall of the bottle mouth of the sampling bottle body 3. At this time, the sampling bottle cover 4 can cover the sampling bottle cap 1 Cover, protect the sampling bottle cap 1. In addition, when the sampling bottle cap 1 has the air conditioning nozzle 11 and the gas inlet mouth 12, the sampling bottle cover 4 is covered on the outer wall of the bottle mouth of the sampling bottle body 3, which can also protect the air conditioning mouth 11 and the gas inlet. The role of mouth 12.

In addition, after the gas sampling device includes the sampling bottle cover 4, when the sampling bottle cover 4 is covered on the outer wall of the bottle mouth of the sampling bottle body 3, in order to prevent the bottom of the sampling bottle cover 4 from being connected to the bottle mouth of the sampling bottle body 3 contact, or the cover bottom of the sample bottle cover 4 is in contact with the air-conditioning nozzle 11 and the gas inlet nozzle 12 on the sample bottle cover 1 . In some embodiments, as shown in FIG. 5 , the sampling device may further include a sampling bottle cover snap ring 5 . The sampling bottle cover snap ring 5 is fixed on the outer wall of the bottle mouth of the sampling bottle body 3, and is used to clamp the sampling bottle cover 4 on the bottle of the sampling bottle body 3 when the sampling bottle cover 4 is covered on the sampling bottle body 3 on the outer wall of the mouth.

In addition, after the gas sampling device includes the sampling bottle cover 4 and the sampling bottle cover snap ring 5, in order to further prevent the bottom of the sampling bottle cover 4 from contacting the bottle mouth of the sampling bottle body 3, or the bottom of the sampling bottle cover 4 and the sampling bottle cover The air regulating nozzle 11 on the bottle cap 1 is in contact with the gas inlet nozzle 12 . In some embodiments, as shown in FIG. 6 , the gas sampling device may further include a cap ring 6 . As shown in FIG. 7 , the outer diameter of the cap stopper ring 6 is larger than the outer diameter of the sample bottle cap snap ring 5 . And the cover stop ring 6 is fixed between the bottom of the sampling bottle body 3 and the sampling bottle cover snap ring 5, and is used to clamp the sampling bottle cover 4 on the sampling bottle body when the sampling bottle cover 4 is covered on the sampling bottle body 3. 3 on the outer wall.

In addition, when using the gas sampling device provided by the embodiments of the present invention, in order to facilitate the observation of the liquid injected into the gas sampling device, or the gas entering the gas sampling device, in some embodiments, the sampling bottle body 3 may be transparent body.

It should be noted that the transparent body can be glass, and of course the transparent body can also be other materials, such as resin.

In addition, when using the gas sampling device provided by the embodiment of the present invention, in order to facilitate the determination of the volume of the gas entering the gas sampling device, in some embodiments, the sampling bottle body 3 may be configured with a scale line, and the scale line is used for Indicates the volume of fluid entering the sampling bottle 3.

For example, the sampling bottle body 3 may be provided with a first scale line, a second scale line and a third scale line. After the gas enters the sampling bottle body 3 , the gas reaches the first scale line, indicating that less gas enters the sampling bottle body 3 . After the gas enters the sampling bottle body 3, the gas reaches the second scale line, indicating that relatively more gas enters the sampling bottle body 3. After the gas enters the sampling bottle body 3, the gas reaches the third scale line, indicating that the gas enters the sampling bottle body 3 the most. The first tick mark may be referred to as the low tick mark, the second tick mark may be referred to as the median tick mark, and the third tick mark may be referred to as the high tick mark.

In addition, when the gas sampling device provided by the embodiment of the present invention is used, the connection method that the sampling bottle cap 1 can be sealed with the sampling bottle body 3 may be: the sampling bottle cap 1 and the inner wall of the bottle mouth of the sampling bottle body 3 Both are equipped with a frosted layer, and the bottle cap of the sampling bottle 1 and the bottle mouth of the sampling bottle body 3 are sealed and connected through the frosted layer.

After the frosted layer is arranged on the sampling bottle cap 1 and the inner wall of the bottle mouth of the sampling bottle body 3, the frosted layer on the sampling bottle cap 1 and the frosted layer on the inner wall of the bottle mouth of the sampling bottle body 3 can fit each other. , so that the sampling bottle cap 1 can be sealed with the sampling bottle body 3 .

Of course, the connection method that the sampling bottle cap 1 can be sealed with the sampling bottle body 3 can also be as follows: the outer wall of the bottle mouth of the sampling bottle body 3 and the sampling bottle cap 1 are provided with threads, and the sampling bottle cap 1 and the sampling bottle body 3 are provided with threads. The mouth of the bottle is connected by a threaded seal.

It should be noted that, when the material of the sampling bottle body 3 is glass, the materials of the sampling bottle cap 1 , the air conditioning nozzle 11 , and the gas inlet nozzle 12 may all be glass. In addition, the material of the air-conditioning nozzle cap 13 and the gas inlet nozzle cap 14 may be rubber.

Below in conjunction with Fig. 6, the use process of the gas sampling device provided by the embodiment of the present utility model is described in detail:

When using the gas sampling device provided by the embodiment of the present invention, the sampling bottle cover 4 can be removed from the sampling bottle body 3 first, and then the sampling bottle cap 1 can be removed from the sampling bottle body 3 . After the sampling bottle cap 1 is removed from the sampling bottle body 3, a liquid is injected into the sampling bottle body 3, and the liquid may be water. Then cover the sampling bottle cap 1 on the sampling bottle body 3 . When the sampling bottle cap 1 is capped on the sampling bottle body 3 , the sampling bottle built-in tube 2 is located in the sampling bottle body 3 . And the other end part of the built-in tube 2 of the sampling bottle is submerged in water. Then, the air conditioning nozzle cap 13 and the gas inlet nozzle cap 14 are respectively removed from the air conditioning nozzle 11 and the gas inlet nozzle 12 , and the micro air compressor is connected to the air conditioning nozzle 11 . Pressurized air is injected into the sampling bottle body 3 through a micro air compressor. The air with pressure enters into the built-in tube 2 of the sampling bottle along the air regulating nozzle 11, and pushes the water in the built-in tube 2 of the sampling bottle out.

When the water in the built-in tube 2 of the sampling bottle is being pushed out, the water in the space between the outside of the built-in tube 2 of the sampling bottle and the sampling bottle body 3 is subjected to the pressure of the air with pressure, so as to move along the sampling bottle The bottom of the body 3 moves in the direction of the mouth of the sampling bottle body 3 . When the water in the space between the outside of the sampling bottle built-in tube 2 and the sampling bottle body 3 moves to the second through hole, cover the gas inlet cap 14 on the gas inlet mouth, and stop the micro air compressor to the sampling bottle Air is injected into the body 3 , and the air-conditioning nozzle cap 13 is covered on the air-conditioning nozzle 11 . After the air-conditioning nozzle cap 13 is covered on the air-conditioning nozzle 11, since there is pressurized air in the sampling bottle built-in tube 2, the water in the space between the outside of the sampling bottle built-in tube 2 and the sampling bottle body 3 always remains The pressure is maintained, that is, the space between the outside of the sampling bottle built-in tube 2 and the sampling bottle body 3 is filled with water in the space between the outside of the sampling bottle built-in tube 2 and the sampling bottle body 3 .

Then, when the gas sampling device needs to be used to collect the gas in the oil well, the gas inlet cap 14 is removed from the gas inlet nozzle 12, and the gas inlet nozzle 12 is connected to the gas release valve on the casing of the oil well. Then, the air-conditioning nozzle cap 13 is opened. After the air-conditioning nozzle cap 13 is opened, since the gas inlet nozzle 12 is connected to the air release valve, the air-conditioning nozzle 11 and the gas inlet nozzle 12 are not connected, and the space between the outside of the sampling bottle built-in tube 2 and the sampling bottle body 3 is not connected. The water remains under pressure. Then open the air release valve, the gas in the oil well flows into the gas inlet nozzle 12 through the air release valve, and drives the water in the space between the outside of the built-in tube 2 of the sampling bottle and the sampling bottle body 3 to flow. When the water in the space between the inner tube 2 of the sampling bottle and the sampling bottle body 3 flows to the scale line on the sampling bottle body 3 , the volume of the gas entering the sampling bottle body 3 can be determined according to the scale line. When the gas in the sampling bottle body 3 reaches the volume of gas to be collected, disconnect the gas inlet valve from the gas release valve. The gas inlet nozzle cap 14 and the air-conditioning nozzle cap 13 are respectively covered on the gas inlet nozzle 12 and the air-conditioning nozzle 11 . Finally, cover the sampling bottle cover 4 on the sampling bottle body 3 .

When using the gas sampling device provided by the embodiment of the present invention, a sufficient amount of liquid is injected into the sampling bottle body, and it can be ensured that after the liquid is under pressure, it can flow to the sampling bottle along the direction from the bottle bottom of the sampling bottle body to the bottle mouth. After that, cover the sampling bottle cap on the bottle mouth of the sampling bottle body. At this time, the built-in tube of the sampling bottle is located in the sampling bottle body, and the other end of the built-in tube of the sampling bottle is submerged in the liquid. The air with pressure is injected into the inner tube of the sampling bottle through the first through hole. The air with pressure will exert pressure on the liquid in the built-in sampling tube. After the liquid in the built-in tube of the sampling bottle is under pressure, it will flow out of the built-in tube of the sampling bottle, and drive the liquid outside the built-in sampling tube to the bottle of the sampling bottle body. mouth movement. When the liquid in the sampling bottle flows to the second through hole, the second through hole is blocked, and the first through hole is blocked.

Then open the second through hole and connect the second through hole with the air release valve on the casing of the oil well, then open the first through hole, and then open the air release valve. The gas in the oil well can flow to the second through hole through the air release valve, and flow into the sampling bottle body through the second through hole, so that the gas sampling device collects the gas in the oil well. That is, in the sampling process, there is no need to prepare an additional container for water, and the sampling bottle cap can be sealed with the bottle mouth of the sampling bottle body, and the bottle cap is not easy to fall off the sampling bottle body, so that the collected gas is always It is in the gas sampling device, thereby improving the sampling efficiency.

To sum up, it is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall include within the scope of protection of the present invention.

Claims (10)

1. The gas sampling device is characterized by comprising a sampling bottle cap (1), a sampling bottle built-in pipe (2) and a sampling bottle body (3);

a first through hole and a second through hole are formed in the cover body of the sampling bottle cover (1), one end of the sampling bottle built-in pipe (2) is fixed at the position of the first through hole, and the first through hole and the second through hole can be sealed;

the sampling bottle cap (1) and the bottle mouth of the sampling bottle body (3) can be in sealing connection, when the sampling bottle cap (1) and the sampling bottle body (3) are in sealing connection, the sampling bottle built-in pipe (2) is located in the sampling bottle body (3), and the other end of the sampling bottle built-in pipe (2) is not in contact with the bottom of the sampling bottle body (3).

2. The gas sampling device according to claim 1, characterized in that the sampling bottle cap (1) further comprises an air regulating mouth (11) and a gas inlet mouth (12);

the air conditioning nozzle (11) is fixed on the first surface of the cover body at the position of the first through hole;

the gas inlet nozzle (12) is fixed on the first surface of the cover body at the position of the second through hole;

the position of the first through hole on the second surface of the cover body is fixed with the sampling bottle built-in pipe (2).

3. The gas sampling device according to claim 2, further comprising an air-conditioning mouthpiece (13) and a gas entry mouthpiece (14);

the air-conditioning nozzle cap (13) is used for sealing the air-conditioning nozzle (11);

the gas inlet nozzle cap (14) is used to seal the gas inlet nozzle (12).

4. The gas sampling device of claim 1, further comprising a sampling vial cover (4);

the sampling bottle cover (4) is used for covering the outer wall of the bottle mouth of the sampling bottle body (3).

5. The gas sampling assembly of claim 4, further comprising a sampling vial closure collar (5);

the sampling bottle cover clamping ring (5) is fixed on the outer wall of the bottle mouth of the sampling bottle body (3) and used for clamping the sampling bottle cover (4) on the outer wall of the bottle mouth of the sampling bottle body (3) when the sampling bottle cover (4) covers the sampling bottle body (3).

6. The gas sampling assembly of claim 5, further comprising a stop collar (6);

the external diameter of ending cover ring (6) is greater than the external diameter of sampling bottle cover snap ring (5), just end cover ring (6) and fix the bottom of sampling bottle (3) with between sampling bottle cover snap ring (5), be used for when sampling bottle cover (4) lid is in when sampling bottle (3) is last, will sampling bottle cover (4) joint is in on the outer wall of sampling bottle (3).

7. The gas sampling device according to any one of claims 1 to 6, characterized in that the sampling flask (3) is transparent.

8. The gas sampling device according to claim 7, characterized in that the sampling vial (3) is provided with graduation marks for indicating the volume of fluid entering the sampling vial (3).

9. The gas sampling device according to any one of claims 1 to 6, characterized in that a frosted layer is arranged on the sampling bottle cap (1) and on the inner wall of the mouth of the sampling bottle body (3), and the sampling bottle cap (1) and the mouth of the sampling bottle body (3) are hermetically connected through the frosted layer.

10. The gas sampling device according to any one of claims 1 to 6, characterized in that threads are arranged on the outer wall of the mouth of the sampling bottle body (3) and on the sampling bottle cap (1), and the sampling bottle cap (1) and the mouth of the sampling bottle body (3) are connected in a sealing manner through the threads.

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